security: fix vulnerabilities and harden code (2026-03-12)

Path traversal fixes: - DeleteFile.js: use path.resolve() + symlink protection (CRITICAL) - DeleteFileFolder.js: add path.resolve() validation + symlink check (CRITICAL) - RenameFile.js: use path.resolve() with proper prefix check + symlink guard (HIGH) - attachments.js: add baseDir validation + skip symlinks in recursive search (MEDIUM) XSS fixes: - dashboard.js: escape user input in onerror/onclick inline attributes (HIGH) - paramadminsettingsetup.script.js: escape values in innerHTML template (MEDIUM) Input validation: - inputValidationMiddleware.js: block suspicious requests instead of logging only (MEDIUM) Version bump: 1.2.2-beta → 1.2.3-beta
2026-03-12 20:18:28 +01:00
8 changed files with 101 additions and 35 deletions
--- a/Middlewares/inputValidationMiddleware.js
+++ b/Middlewares/inputValidationMiddleware.js
@@ -171,7 +171,8 @@ const inputValidationMiddleware = (req, res, next) => {
        if (req.body && typeof req.body === 'object') {
            const bodyStr = JSON.stringify(req.body);
            if (suspiciousPatterns.some(pattern => pattern.test(bodyStr))) {
-                logger.warn(`Suspicious input detected in request body from ${req.ip}: ${req.path}`);
+                logger.warn(`Suspicious input blocked in request body from ${req.ip}: ${req.path}`);
+                return res.status(400).json({ error: 'Input invalide détecté.' });
            }
        }

@@ -179,11 +180,11 @@ const inputValidationMiddleware = (req, res, next) => {
        if (req.query && typeof req.query === 'object') {
            const queryStr = JSON.stringify(req.query);
            if (suspiciousPatterns.some(pattern => pattern.test(queryStr))) {
-                logger.warn(`Suspicious input detected in query params from ${req.ip}: ${req.path}`);
+                logger.warn(`Suspicious input blocked in query params from ${req.ip}: ${req.path}`);
+                return res.status(400).json({ error: 'Input invalide détecté.' });
            }
        }

-        // Continuer sans bloquer (logging only pour ne pas casser l'app)
        next();
    } catch (error) {
        logger.error('Error in input validation middleware:', error);
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@cdn-app/insider-myaxrin-labs-dinawo",
-  "version": "1.2.2-beta",
+  "version": "1.2.3-beta",
  "description": "",
  "main": "server.js",
  "scripts": {
--- a/public/js/dashboard.js
+++ b/public/js/dashboard.js
@@ -1,4 +1,10 @@
 // Dashboard JavaScript - Version corrigée
+
+function escapeAttr(str) {
+    if (typeof str !== 'string') return '';
+    return str.replace(/&/g, '&amp;').replace(/'/g, '&#39;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+}
+
 document.addEventListener('DOMContentLoaded', function() {
    // Initialisation générale
    initializeDashboard();
@@ -683,9 +689,9 @@ function createCollaborationModal(itemName, itemType, data) {
                                    <div class="collaboration-user-item">
                                        <div class="user-avatar-wrapper">
                                            <img src="${user.profilePicture || getDefaultAvatar(user.name)}"
-                                                 alt="${user.name}" 
+                                                 alt="${escapeAttr(user.name)}"
                                                 class="user-avatar"
-                                                 onerror="this.src='${getDefaultAvatar(user.name)}'">
+                                                 onerror="this.src='${escapeAttr(getDefaultAvatar(user.name))}'">
                                            <div class="user-status-indicator"></div>
                                        </div>
                                        <div class="user-details">
@@ -697,7 +703,7 @@ function createCollaborationModal(itemName, itemType, data) {
                                        </div>
                                        <div class="user-actions">
                                            <button class="action-btn remove-btn"
-                                                    onclick="removeCollaborator('${itemName}', '${itemType}', '${user.id}')"
+                                                    onclick="removeCollaborator('${escapeAttr(itemName)}', '${escapeAttr(itemType)}', '${escapeAttr(user.id)}')"
                                                    title="Retirer ce collaborateur">
                                                <i class="fas fa-user-minus"></i>
                                            </button>
@@ -795,9 +801,9 @@ function searchCollabUser(username, itemName, itemType, modal) {
                        <div class="result-user-info">
                            <div class="result-avatar-wrapper">
                                <img src="${result.user.profilePicture || getDefaultAvatar(result.user.name)}"
-                                     alt="${result.user.name}"
+                                     alt="${escapeAttr(result.user.name)}"
                                     class="result-avatar"
-                                     onerror="this.src='${getDefaultAvatar(result.user.name)}'">
+                                     onerror="this.src='${escapeAttr(getDefaultAvatar(result.user.name))}'">
                            </div>
                            <div class="result-details">
                                <div class="result-name">${result.user.name}</div>
@@ -808,7 +814,7 @@ function searchCollabUser(username, itemName, itemType, modal) {
                            </div>
                        </div>
                        <button class="btn btn-primary add-user-btn"
-                                onclick="addCollaborator('${itemName}', '${itemType}', '${result.user.id}')"
+                                onclick="addCollaborator('${escapeAttr(itemName)}', '${escapeAttr(itemType)}', '${escapeAttr(result.user.id)}')"
                                title="Ajouter ce collaborateur">
                            <i class="fas fa-user-plus"></i>
                            <span>Ajouter</span>
--- a/public/js/paramadminsettingsetup.script.js
+++ b/public/js/paramadminsettingsetup.script.js
@@ -1,3 +1,8 @@
+function escapeAttr(str) {
+    if (typeof str !== 'string') return '';
+    return str.replace(/&/g, '&amp;').replace(/'/g, '&#39;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+}
+
 const body = document.body;
 const themeSwitcher = document.getElementById('themeSwitcher');

@@ -319,11 +324,11 @@ function addPath(type) {
    const div = document.createElement('div');
    div.className = 'flex items-center space-x-2 py-2 px-3 bg-gray-800 rounded-lg animate';
    div.innerHTML = `
-        <span class="flex-1">${value}</span>
+        <span class="flex-1">${escapeAttr(value)}</span>
        <button type="button" onclick="removePath(this)" class="text-gray-400 hover:text-red-500">
            <i class="fas fa-times"></i>
        </button>
-        <input type="hidden" name="logs[${type === 'exclude' ? 'excludePaths' : 'includeOnly'}][]" value="${value}">
+        <input type="hidden" name="logs[${type === 'exclude' ? 'excludePaths' : 'includeOnly'}][]" value="${escapeAttr(value)}">
    `;
    list.appendChild(div);
    input.value = '';
--- a/routes/Dpanel/API/DeleteFile.js
+++ b/routes/Dpanel/API/DeleteFile.js
@@ -156,19 +156,30 @@ router.post('/', authenticateToken, (req, res) => {
        return res.status(400).json({ message: 'User ID or filename missing for file deletion.' });
    }

-    const userFolderPath = path.join('cdn-files', userId);
+    const userFolderPath = path.resolve('cdn-files', userId);

    function findAndDeleteFile(folderPath) {
+        const resolvedFolder = path.resolve(folderPath);
+        if (!resolvedFolder.startsWith(userFolderPath + path.sep) && resolvedFolder !== userFolderPath) {
+            return false;
+        }
+
        const filesInFolder = fs.readdirSync(folderPath);

        for (const file of filesInFolder) {
            const filePath = path.join(folderPath, file);
+            const resolvedFilePath = path.resolve(filePath);

-            if (!filePath.startsWith(userFolderPath)) {
+            if (!resolvedFilePath.startsWith(userFolderPath + path.sep)) {
                return false;
            }

-            if (fs.statSync(filePath).isDirectory()) {
+            const stat = fs.lstatSync(filePath);
+            if (stat.isSymbolicLink()) {
+                continue;
+            }
+
+            if (stat.isDirectory()) {
                const fileDeletedInSubfolder = findAndDeleteFile(filePath);
                if (fileDeletedInSubfolder) {
                    return true;
--- a/routes/Dpanel/API/DeleteFileFolder.js
+++ b/routes/Dpanel/API/DeleteFileFolder.js
@@ -26,8 +26,25 @@ router.post('/:folderName', authMiddleware, (req, res) => {
    const userId = req.userData.name;
    const { filename } = req.body;

-    const userFolderPath = path.join('cdn-files', userId || '');
-const filePath = path.join(userFolderPath, req.params.folderName, filename || '');
+    if (!userId || !filename) {
+        return res.status(400).json({ error: 'Paramètres manquants.' });
+    }
+
+    const userFolderPath = path.resolve('cdn-files', userId);
+    const filePath = path.resolve(userFolderPath, req.params.folderName, filename);
+
+    if (!filePath.startsWith(userFolderPath + path.sep)) {
+        return res.status(403).json({ error: 'Accès non autorisé.' });
+    }
+
+    try {
+        const stat = fs.lstatSync(filePath);
+        if (stat.isSymbolicLink()) {
+            return res.status(403).json({ error: 'Accès non autorisé.' });
+        }
+    } catch (e) {
+        return res.status(404).json({ error: 'Le fichier spécifié n\'existe pas.' });
+    }

    if (!fs.existsSync(filePath)) {
        return res.status(404).json({ error: 'Le fichier spécifié n\'existe pas.' });
--- a/routes/Dpanel/API/RenameFile.js
+++ b/routes/Dpanel/API/RenameFile.js
@@ -142,16 +142,21 @@ router.post('/', authMiddleware, async (req, res) => {
      return res.status(400).json('Both currentName and newName must be provided.');
  }

-  const userDir = path.join('cdn-files', userId);
-  const currentPath = path.join(userDir, filePath, currentName);
-  const newPath = path.join(userDir, filePath, newName);
+  const userDir = path.resolve('cdn-files', userId);
+  const currentPath = path.resolve(userDir, filePath, currentName);
+  const newPath = path.resolve(userDir, filePath, newName);

-  if (!currentPath.startsWith(userDir) || !newPath.startsWith(userDir)) {
+  if (!currentPath.startsWith(userDir + path.sep) || !newPath.startsWith(userDir + path.sep)) {
      ErrorLogger.error('Unauthorized directory access attempt');
      return res.status(403).json('Unauthorized directory access attempt');
  }

  try {
+      const stat = await fs.promises.lstat(currentPath);
+      if (stat.isSymbolicLink()) {
+          return res.status(403).json('Unauthorized: symbolic links are not allowed');
+      }
+
      await fs.promises.rename(currentPath, newPath);

      const data = await fs.promises.readFile(path.join(__dirname, '../../../data', 'file_info.json'), 'utf8');
@@ -186,16 +191,21 @@ router.post('/:filePath*', authMiddleware, async (req, res) => {
        return res.status(400).json('Both currentName and newName must be provided.');
    }

-    const userDir = path.join('cdn-files', userId);
-    const currentPath = path.join(userDir, filePath, currentName);
-    const newPath = path.join(userDir, filePath, newName);
+    const userDir = path.resolve('cdn-files', userId);
+    const currentPath = path.resolve(userDir, filePath, currentName);
+    const newPath = path.resolve(userDir, filePath, newName);

-    if (!currentPath.startsWith(userDir) || !newPath.startsWith(userDir)) {
+    if (!currentPath.startsWith(userDir + path.sep) || !newPath.startsWith(userDir + path.sep)) {
        ErrorLogger.error('Unauthorized directory access attempt');
        return res.status(403).json('Unauthorized directory access attempt');
    }

    try {
+        const stat = await fs.promises.lstat(currentPath);
+        if (stat.isSymbolicLink()) {
+            return res.status(403).json('Unauthorized: symbolic links are not allowed');
+        }
+
        await fs.promises.rename(currentPath, newPath);

        const data = await fs.promises.readFile(path.join(__dirname, '../../../data', 'file_info.json'), 'utf8');
--- a/routes/attachments.js
+++ b/routes/attachments.js
@@ -30,21 +30,37 @@ async function findFileInUserDir(userId, filename) {
    return findFileInDir(userDir, filename);
 }

-async function findFileInDir(dir, filename) {
+async function findFileInDir(dir, filename, baseDir) {
+    if (!baseDir) baseDir = dir;
+    const resolvedDir = path.resolve(dir);
+    const resolvedBase = path.resolve(baseDir);
+
+    if (resolvedDir !== resolvedBase && !resolvedDir.startsWith(resolvedBase + path.sep)) {
+        return null;
+    }
+
    let files;
    try {
        files = await fs.readdir(dir, { withFileTypes: true });
    } catch (err) {
-        return null; // Directory does not exist
+        return null;
    }

    for (const file of files) {
        const filePath = path.join(dir, file.name);

+        if (file.isSymbolicLink()) {
+            continue;
+        }
+
        if (file.name === filename && file.isFile()) {
+            const resolvedFile = path.resolve(filePath);
+            if (resolvedFile.startsWith(resolvedBase + path.sep)) {
                return filePath;
+            }
+            return null;
        } else if (file.isDirectory()) {
-            const found = await findFileInDir(filePath, filename);
+            const found = await findFileInDir(filePath, filename, baseDir);
            if (found) {
                return found;
            }